🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206

Radius: 11

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 6.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,480,452 km

• M1: 136,732 km (0.101 R)
• M2: 548,426 km (0.092 R)
• M3: 903,122 km (0.086 R)
• M4: 1,588,879 km (0.074 R)
• M5: 1,972,747 km (0.103 R)
• M6: 2,448,917 km (0.106 R)
• M7: 2,822,164 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.4

Radius: 12.1

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.5 AU - 0.74 AU

Year: 326 Days

Day: 14.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,480,452 km

• M1: 150,495 km (0.086 R)
• M2: 544,536 km (0.094 R)
• M3: 934,687 km (0.113 R)
• M4: 1,492,388 km (0.092 R)
• M5: 1,892,712 km (0.068 R)
• M6: 2,315,625 km (0.076 R)
• M7: 3,239,841 km (0.047 R)
• M8: 4,068,015 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.7

Radius: 9.5

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.78 AU - 1.22 AU

Year: 667 Days

Day: 12.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,480,452 km

• M1: 118,182 km (0.099 R)
• M2: 463,604 km (0.025 R)
• M3: 796,010 km (0.107 R)
• M4: 1,150,258 km (0.042 R)
• M5: 1,581,399 km (0.094 R)
• M6: 1,904,979 km (0.118 R)
• M7: 2,319,814 km (0.116 R)
• M8: 3,038,333 km (0.076 R)
• M9: 3,357,275 km (0.117 R)
• M10: 5,506,698 km (0.072 R)
• M11: 6,167,023 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.8

Radius: 9.2

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.88 AU - 1.3 AU

Year: 759 Days

Day: 7.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 35,480,452 km

• M1: 114,442 km (0.11 R)
• M2: 545,733 km (0.099 R)
• M3: 1,041,650 km (0.099 R)
• M4: 1,845,589 km (0.111 R)
• M5: 3,585,861 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 8.7

Gravity: 10.99 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.41 AU - 1.77 AU

Year: 1337 Days

Day: 11.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,480,452 km

• M1: 113,395 km (0.094 R)
• M2: 546,930 km (0.117 R)
• M3: 989,291 km (0.098 R)
• M4: 1,611,917 km (0.086 R)
• M5: 2,127,731 km (0.096 R)
• M6: 2,551,392 km (0.049 R)
• M7: 3,377,322 km (0.096 R)
• M8: 5,460,771 km (0.082 R)
• M9: 6,022,661 km (0.103 R)
• M10: 6,772,146 km (0.08 R)
• M11: 7,719,101 km (0.077 R)
• M12: 8,751,625 km (0.041 R)
• M13: 10,639,101 km (0.093 R)
• M14: 11,551,200 km (0.058 R)
• M15: 13,251,828 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.7

Radius: 14.7

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.32 AU - 2.56 AU

Year: 2542 Days

Day: 13.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,480,452 km

• M1: 191,934 km (0.074 R)
• M2: 737,518 km (0.088 R)
• M3: 1,468,901 km (0.098 R)
• M4: 2,391,472 km (0.103 R)
• M5: 2,858,217 km (0.051 R)
• M6: 3,749,371 km (0.102 R)
• M7: 4,427,648 km (0.118 R)
• M8: 5,548,884 km (0.086 R)
• M9: 7,200,295 km (0.12 R)
• M10: 7,807,513 km (0.106 R)
• M11: 12,887,707 km (0.102 R)
• M12: 15,356,969 km (0.11 R)
• M13: 17,151,545 km (0.101 R)
• M14: 17,743,504 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.6

Radius: 10.2

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.74 AU - 5.12 AU

Year: 6218 Days

Day: 5.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,480,452 km

• M1: 126,859 km (0.087 R)
• M2: 551,418 km (0.073 R)
• M3: 1,456,036 km (0.076 R)
• M4: 2,082,103 km (0.101 R)
• M5: 2,458,043 km (0.113 R)
• M6: 4,466,992 km (0.119 R)
• M7: 4,955,878 km (0.098 R)
• M8: 6,335,470 km (0.053 R)
• M9: 7,461,792 km (0.046 R)
• M10: 8,310,311 km (0.101 R)
• M11: 9,221,961 km (0.102 R)
• M12: 10,523,612 km (0.084 R)
• M13: 10,999,782 km (0.107 R)
• M14: 11,995,206 km (0.096 R)
• M15: 12,941,413 km (0.075 R)
• M16: 14,337,161 km (0.116 R)
• M17: 15,281,572 km (0.113 R)
• M18: 15,646,292 km (0.083 R)
• M19: 17,690,247 km (0.084 R)
• M20: 24,715,513 km (0.106 R)
• M21: 25,642,721 km (0.053 R)
• M22: 30,726,206 km (0.088 R)
• M23: 32,995,606 km (0.041 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 17,520 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit